The Cat-Back systems are designed to enhance both sound and aesthetics, serving as a direct replacement for the original exhaust system. Multiple configurations are available, allowing the owner to select the desired exhaust volume and achieve a more aggressive tone if preferred. Constructed from 304L aircraft grade stainless steel, these systems are built to withstand harsh conditions. All performance exhaust systems are developed for a wide range of vehicles, with ongoing research and development to meet performance exhaust requirements. All products are manufactured in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Manufactured from 304L aircraft grade stainless steel - Designed for a wide range of vehicles Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: No Kit comes with: - Y Pipe - MSAU488 - Connecting Pipe - MSAU523 - LH Rear Silencer Assembly - MSAU524 - RH Rear Silencer Assembly - MSAU525 - Polished GT (round) 100 Exhaust Tip - MSAU535 - Adapter Pipe - MSAU522 Vehicle Compatibility: - 2009-2012 Audi A5 Sportback 3.0 TDI quattro Manual / Multitronic / S tronic